package com.airlines.common;

import java.io.UnsupportedEncodingException;
import java.security.MessageDigest;

/**
 * 采用MD5加密
 * 
 * @author soloris
 * @datetime 2016-3-18
 */
public class MD5Util {
    /***
     * MD5加密 生成32位md5码
     * 
     * @param inStr 待加密字符串
     * @return 返回32位md5码
     */
    public static String md5Encode(String inStr)  {
	MessageDigest md5 = null;
	try {
	    md5 = MessageDigest.getInstance("MD5");
	} catch (Exception e) {
	    System.out.println(e.toString());
	    e.printStackTrace();
	    return "";
	}

	byte[] byteArray = null;
	try {
		byteArray = inStr.getBytes("UTF-8");
	} catch (UnsupportedEncodingException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	}
	byte[] md5Bytes = md5.digest(byteArray);
	StringBuffer hexValue = new StringBuffer();
	for (int i = 0; i < md5Bytes.length; i++) {
	    int val = ((int) md5Bytes[i]) & 0xff;
	    if (val < 16) {
		hexValue.append("0");
	    }
	    hexValue.append(Integer.toHexString(val));
	}
	return hexValue.toString();
    }

    /**
     * 测试主函数
     * 
     * @param args
     * @throws Exception
     */
    public static void main(String args[]) throws Exception {
	String str = new String("b2cmessage13518621630");
	System.out.println("原始：" + str);
	System.out.println("MD5后：" + md5Encode(str));
    }
}